325  
CDUS43 KLOT 280636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1236 AM CST MON DEC 28 2020  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 27 2020...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1997 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 46 2:22 PM 60 2008 32 14 36  
MINIMUM 23 1:14 AM -8 2017 16 7 22  
AVERAGE 35 24 11 29  
 
PRECIPITATION (IN)  
YESTERDAY T 1.54 0.04 -0.04 0.00  
MONTH TO DATE 1.29 1.55 -0.26 0.07  
SINCE DEC 1 1.29 1.55 -0.26 0.07  
SINCE JAN 1 31.48 36.74 -5.26 41.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 41 -11 36  
MONTH TO DATE 907 1007 -100 896  
SINCE DEC 1 907 1007 -100 896  
SINCE JUL 1 2078 2261 -183 2272  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 943 814 129 1003    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 10.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 52 2018  
MINIMUM TEMPERATURE (F) 16 -6 2017  
 
SUNRISE AND SUNSET  
DECEMBER 28 2020......SUNRISE 7:20 AM CST SUNSET 4:30 PM CST  
DECEMBER 29 2020......SUNRISE 7:20 AM CST SUNSET 4:30 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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